Lead-acid batteries are heavy, slow to charge, and die young. If you run an RV, a boat, or an off-grid solar setup on them, you have felt it: half the rated capacity is really usable, and every season they fade. There is a better way to store 12V power.
The Pecron WB12200 is a 12V 200Ah LiFePO4 deep cycle battery, about 2560Wh of usable storage that you can draw down deep, day after day, for years. It drops into the same spot as a lead-acid battery and outlasts several of them.
Authorized Pecron dealer. Fast free shipping. Questions? Our team is at orders@mightygenerators.com.
Why switch to a LiFePO4 deep cycle battery?
Because it gives you more usable power, far longer life, and half the weight. The WB12200 is built to be cycled hard.
- Use nearly all of it. LiFePO4 supports deep discharge, so 200Ah of rated capacity is genuinely usable, unlike lead-acid.
- Cycle it for years. LiFePO4 chemistry handles thousands of charge cycles, lasting far longer than lead-acid.
- Carry less weight. It delivers the same power at roughly half the weight of a comparable lead-acid battery.
- Charge faster. It accepts a faster charge and holds voltage steadier as it drains.
Best for: RV house systems, marine and trolling setups, and solar storage banks that need dependable 12V power. Planning a system? Our sizing calculator helps you size your bank.
Built for the way you actually use 12V power
True deep-cycle capacity
How much can you really use? Almost all of it. Where a lead-acid battery wants to stay above 50 percent, the WB12200 lets you pull deep without harming its life, so 200Ah works like 200Ah.
A long, low-maintenance life
LiFePO4 cells cycle for years of regular use with no watering, no acid, and no fumes. Install it and forget it.
Drop-in replacement
It fits the 12V footprint your system already expects, so it pairs with common RV, marine, and solar charge controllers and inverters.
Where the WB12200 earns its place
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RV house battery: run lights, a water pump, a fan, and a fridge through boondocking nights.
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Marine and trolling: steady 12V power for a trolling motor, electronics, and accessories.
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Solar storage: bank the sun in an off-grid or backup solar system and draw it down deep.
LiFePO4 versus lead-acid
- More usable capacity from the same amp-hour rating.
- Thousands of cycles instead of a few hundred.
- Roughly half the weight to carry and mount.
- No watering, no acid spills, no fumes.
A deep cycle battery is built to be drained and recharged repeatedly, unlike a starter battery. The WB12200 brings LiFePO4 chemistry to that job, so your RV, boat, or solar bank holds more and lasts longer.
Specifications
| Capacity |
2560Wh (12.8V / 200Ah) |
| Battery type |
LiFePO4, 3500+ cycles to 80 percent |
| DC output |
XT90 x1, 10 to 14.4V 200A x2 |
| DC input |
14.2V, 100A max |
| Protections |
Circuit protection, battery heating |
| Ecosystem |
Compatible with Victron |
| Connection |
Quick-connect design |
| Weight |
48.5 lbs (22 kg) |
| Dimensions |
21.1 x 8.3 x 8.3 in |
| Operating temperature |
-4F to 113F |
Frequently asked questions
How much usable power does the WB12200 give? It is a 12V 200Ah LiFePO4 battery, about 2560Wh, and LiFePO4 lets you use nearly all of it without shortening its life.
Can it replace my lead-acid battery? Yes. It fits the standard 12V role for RV, marine, and solar systems and works with common charge controllers and inverters.
How long will it last? LiFePO4 batteries are rated for thousands of cycles, far more than lead-acid, so it serves for years of regular deep cycling.
Is it lighter than lead-acid? Yes, roughly half the weight for the same capacity, which makes it easier to mount and carry.
Questions before you buy? Reach our team at orders@mightygenerators.com.
